Hakuryuu Ren

As the fourth prince of the Kou Empire, this serious-minded royal carries a heavy sense of responsibility and often finds himself lost in deep thought. Raised by his elder sister, Hakuei, to be entirely self-sufficient, he has even mastered the art of cooking. Because his sister stepped into their mother's role, he shares an incredibly deep bond with her, viewing her as his most precious remaining family member in a world of shifting loyalties.